China MVR Evaporation Plant by Leading Suppliers | Energy-Efficient Technology from Top Factory

Mechanical Vapor Recompression (MVR) plants from leading suppliers in China provide significant operational savings and efficiency in various industries. These advanced systems leverage electricity to compress vapors, which are then reused as a heating medium, thus ensuring low energy consumption. With gentle low-temperature evaporation and high operational flexibility, MVR technology is ideal for applications in food production, chemical processing, and wastewater treatment. Partner with top factory experts in China to enhance your operational capabilities and reduce costs with state-of-the-art MVR solutions

Product Description

Description

MVR Evaporation plant delivers substantial operational cost savings in areas with an ample supply of low-cost electrical energy.

Once an MVR evaporation plant is running, little or no additional steam is required. In the MVR evaporation plant, a centrifugal fan is used to recompress the vapour to a higher pressure, resulting in a temperature rise. This means that the recompressed vapour can be used as the evaporation plant heating medium, while the condensate is ideal for preheating of the feed product.

For low boiling point increases, a single-stage compressor can be used to fulfill the requirements of the design.

For high boiling point increases, we will provide two designs: multiple-stage compressors, single stage compressors combined with multiple-effect.

The MVR evaporation plant almost doesn't use steam, but electric energy is required as the main energy source.

The power consumption of the main motor of MVR is due to the heat exchange area and the evaporating temperature of the evaporation plant. The Heat exchange area is bigger, and as a result, power consumption is lower, but the investment in equipment is increased.

Evaporating temperature is higher and as a result, power consumption is lower, but fouling in the calandria is therefore increased; Evaporating temperature is lower and as a result, power consumption is higher.

MVR can be powered by an electric motor, the rotary speed of an MVR can be controlled by a frequency converter, and the rotary speed of an MVR may control the evaporation rate and final concentration of the MVR evaporation plant.

MVR Evaporation Plant Detail (1)
MVR Evaporation Plant Detail (2)
MVR Evaporation Plant Detail (3)
Particular Feature
  • Low specific energy consumption.
  • Gentle evaporation of the product due to low temperature differences largely increases product quality, decreases fouling.
  • Short residence times of the product, as a single-effect system is most often used.
  • Only a small area condenser, requiring little cooling water.
  • High availability of the plants due to the simplicity of the process.
  • Excellent partial load behaviour.
  • Low specific operating costs.
MVR Evaporation Plant Detail (4)
Fields of Application
๐Ÿญ
Particularly suited for the food and beverages industry (evaporation of milk, whey, sugar solutions), chemical industry (evaporation of aqueous solutions), the salt works industry (evaporation of saline solutions), and environmental protection technology (concentration of waste water).
๐Ÿฅ› Food & Beverages โšก Chemical Industry ๐Ÿงช Salt Works Industry โ™ป๏ธ Environmental Protection
MVR Evaporation Plant Compared with a Normal Multiple-effect Evaporation Plant
Type Multiple-effect Evaporation Plant / TVR Evaporation Plant MVR Evaporation Plant
Energy sources Steam Electric power
Energy consumption of concentrating water of 1 ton, per hour 0.16โ€“0.6T 18โ€“26 Kw
๐Ÿ’ก For Example
  • Evaporation rate: 50T/h
  • Unit price of steam: 160 RMB/T
  • Unit price of electric power: 0.8 RMB/Kw
  • 8,000 hours per annum
Type 4-Effect Evaporation Plant MVR Evaporation Plant
Energy consumption Steam: 11T/h Electric power: 1,000 Kw/h
Expense of energy consumption, per annum 14,080,000 RMB 6,400,000 RMB
Economizing expense, per annum Zero ๐Ÿ’ฐ 7,680,000 RMB
๐Ÿ“‹ System Legend
  • 1. Evaporator
  • 2. Condenser
  • 3. Plate heat exchanger
  • 4. MVR
  • 5. Condensate Tank
  • A. Liquor
  • B. Product
  • C. Condensate
  • D. Fresh steam
  • E. Cooling water
  • F. Deaeration
MVR Evaporation Plant Detail (5)
Type Selection Criteria for Evaporation Plants
When we design evaporation plants, various requirements must be considered. These determine the type of design, arrangement, the resulting process, the cost of investments, and running expenses.
โš™๏ธ The Most Important Requirements
๐Ÿ“Š Capacity and Operation Data
  • Name of Product
  • Feeding concentration (dry materials %)
  • Feeding temperature
  • Final concentration (dry materials %)
  • Evaporation rate (T/h)
  • If crystallization, requirement of crystals
  • Requirement of controlling, automatization
๐Ÿงช Product Properties
  • Product properties
  • Viscosity and flow properties
  • Tendency of foaming
  • Fouling and precipitation
  • Boiling Point
๐Ÿ”Œ Utility Requirements
  • Steam pressure / temperature
  • Temperature of Cooling water feeding
  • Voltage / frequency
  • Unit price of steam (RMB/T)
  • Unit price of electric power (RMB/Kw)
โ™จ๏ธ Waste Heat Parameter
  • Waste vapour rate from dryer
  • Wet bulb temperature of waste vapour from dryer
  • Condensate rate from dryer
  • Condensate temperature from dryer
  • Liquefaction vapour rate
  • Liquefaction Vapour temperature
  • Others
๐Ÿ”ง Selection of Materials
  • Material of heating pipe
  • Material of tube plate
  • Material of contacting with liquor
  • Material of Contacting with secondary steam
  • Requirement of surface finish
โšก Energy Efficiency of Evaporation Plants
  • Multiple-effect evaporation plant
  • TVR evaporation plant
  • MVR evaporation plant
  • Waste heat evaporation plant
Frequently Asked Questions (FAQ)
Q What is an MVR evaporation plant and how does it work?
An MVR (Mechanical Vapour Recompression) evaporation plant uses a centrifugal fan to recompress the vapour generated during evaporation to a higher pressure, which raises its temperature. This recompressed vapour is then recycled as the heating medium for the evaporation process, significantly reducing the need for external steam and lowering overall energy consumption.
Q How much energy does an MVR evaporation plant save compared to a traditional multiple-effect evaporation plant?
The savings are substantial. For example, with an evaporation rate of 50T/h operating 8,000 hours per year, a 4-effect evaporation plant may cost approximately 14,080,000 RMB annually in energy, while an MVR evaporation plant costs only around 6,400,000 RMB โ€” saving approximately 7,680,000 RMB per year.
Q What industries are MVR evaporation plants suitable for?
MVR evaporation plants are particularly well-suited for the food and beverages industry (e.g., milk, whey, sugar solutions), the chemical industry (aqueous solutions), the salt works industry (saline solutions), and environmental protection applications such as wastewater concentration.
Q What factors affect the power consumption of an MVR evaporation plant?
The main factors are the heat exchange area and the evaporating temperature. A larger heat exchange area results in lower power consumption but increases equipment investment. A higher evaporating temperature lowers power consumption but increases fouling risk in the calandria. A lower evaporating temperature requires higher power consumption.
Q Can the evaporation rate of an MVR plant be controlled?
Yes. MVR can be powered by an electric motor, and its rotary speed can be precisely controlled using a frequency converter. By adjusting the rotary speed, operators can effectively control both the evaporation rate and the final concentration of the product in the MVR evaporation plant.
Q What information is needed to select the right type of evaporation plant?
Selecting the right evaporation plant requires detailed information including: product name and properties, feeding concentration and temperature, final concentration target, evaporation rate, utility data (steam pressure, cooling water temperature, voltage), material selection requirements, waste heat parameters, and energy cost data (unit prices of steam and electricity). All these factors help determine the optimal design and energy efficiency strategy.

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